| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 51 |
10.4%
|
| 2 | no | 426 |
86.6%
|
| 3 | (dk) | 10 |
2%
|
| 4 | (ref) | 5 |
1%
|
| Sysmiss | 508 |